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초록
The oscillatory interlayer exchange coupling (IEC) has been shown in pinned [CoFe/Pt(tPt)/CoFe]/IrMn multilayers with perpendicular anisotropy. The period of oscillation corresponds to about 2 monolayers of Pt. The oscillatory behavior of IEC depending on the nonmagnetic metallic Pt thickness is thought to be related the antiferromagnetic ordering induced by IrMn layer. Oscillatory IEC as function of insulating NiO thickness has been observed in [Pt/CoFe]4/NiO(tNiO)/[CoFe/Pt]4multilayers. The effect of N (number of bilayer repeats) upon the magnetic property of [Pt/CoFe]N/IrMn is also studied.
키워드
interlayer exchange coupling (IEC); perpendicular anisotropy; nonmagnetic metallic Pt layer; antiferromagnetic IrMn layer
- 제목
- Pt Thickness Dependence of Oscillatory Interlayer Exchange Coupling in [CoFe/Pt/CoFe]/IrMn Multilayers with Perpendicular Anisotropy
- 저자
- 이상석; 최종구; 김선욱; 황도근; 이장로
- 발행일
- 2005-06
- 권
- 10
- 호
- 2
- 페이지
- 44 ~ 47